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Clear DNS info

To clear cached DNS info in various versions of Mac OS X...

Mac OS X Yosemite and later: sudo killall -HUP mDNSResponder
Mac OS X Yosemite v10.10 through v10.10.3: sudo discoveryutil mdnsflushcache
Mac OS X Mavericks, Mountain Lion and Lion: sudo killall -HUP mDNSResponder
Mac OS X Snow Leopard: sudo dscacheutil -flushcache



My latest blog post: Problematic Ideas: Some people will read this and think, what's the problem here? (posted 2025-08-30). My latest podcast: OJB's Podcast 2025-08-07 What is Anything?.
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